期刊文献+

粉煤灰水泥土力学特性试验研究 被引量:16

Experimental Studyon the Mechanical Properties of FlyAsh Cement Soil
下载PDF
导出
摘要 针对上海苏州河区域的软土特点,将粉煤灰和水泥作为固化材料加固饱和软黏土,研究粉煤灰对水泥土力学特性的影响.通过无侧限抗压强度试验,研究了不同粉煤灰掺量、水泥掺量以及不同龄期对水泥土强度和变形特性的影响;通过Matlab数据拟合,提出了水泥粉煤灰固化土的强度预测方法.随着龄期的增长和粉煤灰掺量的增加,固化土的应力应变关系由塑性破坏转变成脆性破坏.当粉煤灰掺量过高时,水泥土中易发生耦合反应,影响固化效果.因此,水泥掺量与粉煤灰掺量比例为1∶1,且粉煤灰最佳掺量为14%~18%. Based on the soft soil characteristics of the Suzhou River in Shanghai,the saturated clay with fly ash and cement as solidified materials was used to research the effect of fly ash on the mechanical characteristics of cement soil.Through unconfined compressive strength tests under different cement dosage,fly ash and curing time,the mixing soil strength properties and deformation characteristics were investigated and a prediction method for the relation between unconfined compressive strength and curing period was proposed through the data fitting by using the Matlab.The results show that the stress strain relationship of the stabilized soil will be changed from the plastic collapse intobrittle failure with the increase of fly ash and the age.When the fly ash dosage is too high,the coupling reaction is likely to occur,which affects the solidified effect.The best content ratio of cement to fly ash is1∶1,and the optimum amount of fly ash is from14%to18%.
出处 《上海理工大学学报》 北大核心 2017年第5期490-496,共7页 Journal of University of Shanghai For Science and Technology
关键词 水泥土 粉煤灰 无侧限抗压强度 cement soil fly ash unconfined compressive strength
  • 相关文献

参考文献2

二级参考文献18

  • 1黄新,周国钧.水泥加固土硬化机理初探[J].岩土工程学报,1994,16(1):62-68. 被引量:150
  • 2朱伟,张春雷,高玉峰,范昭平.海洋疏浚泥固化处理土基本力学性质研究[J].浙江大学学报(工学版),2005,39(10):1561-1565. 被引量:92
  • 3吴瑞潜,谢康和,陈先华,钱维标.水泥和粉煤灰加固红黏土的试验研究[J].工业建筑,2006,36(7):29-31. 被引量:18
  • 4Shenbaga R, Kanirig and Vasant G. Behavior of cement - stabilized fiber - reinforced fly ash - soil mixtures [ J ]. Journal of Geotechnical and Geoenvironmental Engineering, 2001, ( 7 ) : 574 - 584.
  • 5Nilo Cesar,Consoli. Behavior of compacted soil - fly - ash - carbide lime mixtures [ J ]. Journal of Geotechnical and Geoenvironmental Engineering, 2002, (12) : 1047 - 1048.
  • 6中华人民共和国行业标准.建筑地基基础设计规范(GB50007)[S].北京:中国建筑工业出版社,2002.
  • 7盐城市高速公路建设指挥部,东南大学交通学院.淮盐高速公路泻湖相软土粉煤灰水泥搅拌法加固技术研究报告[R],2006.
  • 8E.w.Br and,R.P.Br enner,(叶书麟,宰金璋译).软粘土工程学[M].北京:中国铁道出版社,1991.
  • 9熊田恭一.土壤有机质化学[M].北京:科学出版社,1984.
  • 10韩韧,杨利群,徐先宇,楼宗汉.粉煤灰大坝水泥及其机理的研究[A].第二届水泥学会年会[C],1984,314-319.

共引文献56

同被引文献129

引证文献16

二级引证文献55

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部